The utility model relates to a novel fastener for distribution lines, innovation point lying in the leaded pinch -off blades at the back of extension board demountable installation, and this cable guide tie plate is made by two vertical plate and two diaphragm an organic wholes of symmetry, and this vertical plate and diaphragm enclose into a pin hole ascending spacing extension has been made along an organic whole to the outer of movable block, and this spacing extension is improved level with the movable block and is personally submitted the angle of inclination setting, and this inclination is greater than 90 degrees. The utility model provides a pair of novel fastener for distribution lines, design scientific and reasonable, simple structure, convenient to use, install and use at the scene of being convenient for, and the installation degree of difficulty is low, and effective connection structure stability that improves lead wire and electrical lead improves operator person's work efficiency, and it is dangerous to reduce the operation, is applicable to and widelys popularize the use.